CN113014774B - Shading diaphragm, diaphragm-variable assembly, driving and image pickup device and electronic equipment - Google Patents

Abstract

The invention belongs to the technical field of electronic equipment, and particularly relates to a shading diaphragm, an iris diaphragm assembly, a camera device and electronic equipment. It has solved defects such as current shading light ring shake. This shelter from light ring includes the lamellar body, is equipped with the installation axle at the rotating part of lamellar body and stretches into the hole, is equipped with the unthreaded hole at the shielding part of lamellar body, still is equipped with at the shielding part of lamellar body to be located unthreaded hole outlying first anti-shake adsorption piece and second anti-shake adsorption piece, and first anti-shake adsorption piece is used for shielding part to shelter from to put in place and fixes and shelter from the position, and second anti-shake adsorption piece is used for shielding part to reach and not shelter from the position and make shielding part fixes and not shelters from the position. The invention has the advantages that: utilize first anti-shake to adsorb piece and second anti-shake to adsorb the piece and make to shelter from the light ring and be firmly adsorbed fixedly sheltering from the position or not sheltering from the position, guarantee to shelter from light ring shielding part can not incline and can not remove and shake, ensured light source stability.

Description

Shading diaphragm, diaphragm-variable assembly, driving and image pickup device and electronic equipment

Technical Field

The invention belongs to the technical field of electronic equipment, and particularly relates to a shading diaphragm, an iris diaphragm assembly, a driving and shooting device and electronic equipment.

Background

In the fields of cameras, monitoring, security and the like, these devices include a camera function. The diaphragm of the built-in camera module is a common component.

When the shading diaphragm reaches the shading position and the non-shading starting position, the shading diaphragm can shake due to the movement of an external part, and therefore the light source is unstable.

In view of the above, those skilled in the art need to improve the structure of the shading aperture to solve the above technical problems.

Disclosure of Invention

The present invention has been made in view of the above problems, and an object of the present invention is to provide a shading diaphragm, an iris diaphragm assembly, a driving and imaging apparatus, and an electronic device that can solve the above problems.

In order to achieve the purpose, the invention adopts the following technical scheme:

this shelter from light ring includes the lamellar body, is equipped with the installation axle at the rotating part of lamellar body and stretches into the hole, is equipped with the unthreaded hole at the shielding part of lamellar body, still is equipped with at the shielding part of lamellar body to be located unthreaded hole outlying first anti-shake adsorption piece and second anti-shake adsorption piece, and first anti-shake adsorption piece is used for shielding part to shelter from to put in place and fixes and shelter from the position, and second anti-shake adsorption piece is used for shielding part to reach and not shelter from the position and make shielding part fixes and not shelters from the position.

In the shading aperture, the first anti-shake adsorption piece and the second anti-shake adsorption piece are both made of magnetic materials.

In the above-described shading aperture, one side of the shading portion of the sheet-like body has a first side plane, the other side of the shading portion of the sheet-like body has a second side plane, the first anti-shake absorption member is located on the side close to the first side plane, and the second anti-shake absorption member is located on the side close to the second side plane.

In the above-described shading diaphragm, the first anti-shake absorbing member and the second anti-shake absorbing member are fixed to any one surface of the shading portion in the thickness direction.

In the above-described shading diaphragm, the first limiting hole and the second limiting hole are provided in any surface of the thickness direction of the shading portion of the sheet-like body, the first limiting hole is located on a side close to the first side plane, the second limiting hole is located on a side close to the second side plane, the first anti-shake adsorption member is installed in the first limiting hole, and the second anti-shake adsorption member is installed in the second limiting hole.

In the above-described shading aperture, an annular protrusion is provided on any one surface of the shading portion of the sheet-like body so as to be fitted around the first anti-shake absorbing member and the second anti-shake absorbing member, respectively, and the first limiting hole or the second limiting hole is formed inside the annular protrusion.

In the above-mentioned shading aperture, a waist-shaped hole is provided in the rotating portion of the sheet-shaped body, the waist-shaped hole is used for being movably connected with the aperture driving device, an annular upper protrusion with a shape corresponding to the waist-shaped hole is provided at one end of the waist-shaped hole, the inside of the annular upper protrusion is communicated with the waist-shaped hole, and one end of the annular upper protrusion, which is far away from the sheet-shaped body, is used for contacting with the inner top surface of the cover body so as to keep the sheet-shaped body horizontal.

The invention also discloses an iris diaphragm assembly which is provided with the shielding iris diaphragm.

The invention also discloses a lens driving device, which comprises a device base, wherein a shell is arranged on the device base, the carrier is positioned in a cavity formed by the device base and the shell, and the shell is connected with the variable diaphragm assembly.

The invention also discloses an image pickup device which is provided with the lens driving device.

The invention also discloses electronic equipment with the camera device.

Compared with the prior art, the invention has the advantages that:

utilize first anti-shake to adsorb piece and second anti-shake to adsorb the piece and make and shelter from the light ring and be sheltered from the position or not sheltered from the position and firmly adsorbed fixedly, guarantee to shelter from light ring shielding part can not incline and can not remove and shake, ensured light source stability.

The first side plane and the second side plane can enlarge the contact surface and ensure the stability when the contact is in place, thereby further ensuring the stability of the light source.

Drawings

Fig. 1 is a schematic perspective view of a base with a cover according to the present invention.

Fig. 2 is a schematic perspective view of a base provided by the present invention.

Fig. 3 is a schematic view of another perspective structure of the base provided by the present invention.

Fig. 4 is a schematic view of a cover structure provided in the present invention.

Fig. 5 is a schematic view of the fitting state of the mounting shaft and the reinforcing part of the cover body provided by the invention.

Fig. 6 is a schematic diagram of an exploded structure of the iris diaphragm assembly provided in the present invention.

Fig. 7 is a schematic view of a three-dimensional structure of a shading diaphragm provided by the present invention.

FIG. 8 is a schematic view of the sheet-like body in a shielding position according to the present invention.

FIG. 9 is a schematic structural view of the sheet-like body provided by the present invention in an unshielded position.

FIG. 10 is a schematic structural view of the iris diaphragm provided in the present invention with the base removed.

Fig. 11 isbase:Sub>A schematic sectional view taken along linebase:Sub>A-base:Sub>A in fig. 10.

Fig. 12 is a schematic structural diagram of an aperture driving device provided by the present invention.

Fig. 13 is a schematic structural diagram of another driving device for an aperture stop according to another aspect of the present invention.

Fig. 14 is a schematic perspective view of an outer frame according to the present invention.

Fig. 15 is a schematic view of another perspective structure of the outer frame according to the present invention.

Fig. 16 is a schematic structural diagram of a turning block provided by the invention.

Fig. 17 is a schematic diagram of a circuit board structure provided by the present invention.

Fig. 18 is a schematic structural diagram of the second embodiment of the present invention.

FIG. 19 is a schematic diagram of a third structure of the present invention.

Fig. 20 is a schematic structural diagram of a sixth embodiment of the present invention.

Fig. 21 is a schematic structural diagram of a seventh embodiment of the present invention.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 2 and 3, the base of the iris diaphragm includes a block-shaped base 10, the block-shaped base 10 is rectangular to meet the installation requirement, and a first light path hole 100 penetrating through the block-shaped base 10 in the thickness direction is formed in the block-shaped base 10. The first light path hole 100 is a circular through hole to facilitate the passage of light.

As shown in fig. 2 and fig. 6, the base further includes a mounting groove 101, and a bearing surface 102 disposed in the thickness direction of the block-shaped base 10, wherein the mounting groove 101 is used for mounting the aperture driving device 2 and the stabilizing mechanism 3; the mounting groove 101 is directly designed on the bearing surface 102, after the diaphragm driving device 2 is mounted in the mounting groove 101, the distance between the axial direction of the first light path hole 100 and the first light path hole 100 is greatly reduced by the shading diaphragm 4 connected with the diaphragm driving device 2, the shading flaw of the shading diaphragm 4 is perfectly solved by reducing the distance, the compactness of the whole structure is further improved, the size of the base of the diaphragm is smaller, and the small-size mounting requirement of the limited mounting space in the fields of cameras, monitoring, security protection and the like is met; secondly, the installation groove 101 is designed to facilitate the embedded installation and fixation of the diaphragm driving device 2, so that the installation difficulty is reduced, the installation efficiency is further improved, and the cost for installing the diaphragm driving device 2 is greatly reduced.

In order to further improve the installation efficiency of the diaphragm driving device 2 and further reduce the installation difficulty of the diaphragm driving device 2, as shown in fig. 2 and 3, the base further includes an avoiding groove 103, which is disposed on the bearing surface 102, and the installation groove 101 and the avoiding groove 103 are communicated through a communicating groove 104, and the avoiding groove 103 and the communicating groove 104 are used for avoiding the movement track of the diaphragm driving device 2.

The diaphragm driving device 2 is a cantilever diaphragm driving device, and the avoiding groove 103 and the communicating groove 104 have a plurality of functions, and can accommodate the diaphragm driving device 2 at first, so that the shielding diaphragm 4 can greatly reduce the distance between the axial direction of the first light path hole 100 and the first light path hole 100, and secondly, the diaphragm driving device 2 can play a role in avoiding when being driven to move, thereby avoiding the damage of the diaphragm driving device 2 caused by the contact with the diaphragm driving device 2, and the generation of noise.

Preferably, as shown in fig. 2, the bearing surface 102 of the present embodiment includes a high bearing surface 1020 and a low bearing surface 1021, the high bearing surface 1020 and the low bearing surface 1021 are connected through a middle transition surface 1022, the installation groove 101, the avoiding groove 103 and the communication groove 104 are respectively disposed on the low bearing surface 1021, and the first light path hole 100 is disposed on the high bearing surface 1020. By using the high-low design of the high bearing plane 1020 and the low bearing plane 1021, the distance between the axial direction of the shielding diaphragm 4 in the first light path hole 100 and the first light path hole 100 can be further reduced, that is, the whole structure is more compact and smaller in size in a limited space as much as possible, so that the whole thickness is further thinned, and the high-low design can be widely applied to various electronic devices, and has stronger practicability.

Secondly, the high bearing plane 1020 is vertically connected with the middle transition plane 1022, and the low bearing plane 1021 is vertically connected with the middle transition plane 1022, so that the structural processing and manufacturing are facilitated, and meanwhile, the structural strength performance is better.

Of course, the high bearing plane 1020 and the middle transition plane 1022 may be connected by an obtuse included angle with a certain angle, and meanwhile, the low bearing plane 1021 and the middle transition plane 1022 may also be connected by an obtuse included angle with a certain angle, for example, an obtuse angle of 120 degrees, which may be set according to actual requirements.

In addition, the high bearing plane 1020 and the low bearing plane 1021 of the embodiment are distributed in parallel, so as to facilitate processing and manufacturing, and meanwhile, the subsequent installation of the aperture driving device 2 can be facilitated, so that interference is not easily formed, the installation efficiency is improved, and the installation difficulty is reduced.

As shown in fig. 2 and fig. 3, a high-position parallel surface 102a parallel to the high-position bearing plane 1020, a middle parallel surface 102b parallel to the middle transition surface 1022, and a low-position parallel surface 102c parallel to the low-position bearing plane 1021 are provided on a surface of the block-shaped base 10 away from the bearing surface 102, the high-position parallel surface 102a, the middle parallel surface 102b, and the low-position parallel surface 102c are sequentially connected, a vertical distance between the high-position bearing plane 1020 and the high-position parallel surface 102a is smaller than a vertical distance between the low-position bearing plane 1021 and the low-position parallel surface 102c, and the high-position parallel surface 102a and the middle parallel surface 102b form a gap to facilitate installation of the block-shaped base 10, and at the same time, the overall weight of the block-shaped base 10 is reduced, and the design is more reasonable.

Preferably, the base still includes the installation axle 105 that is located the intercommunication groove 104 and dodges groove 103 intercommunication department dead ahead, and installation axle 105 is used for connecting the shading light ring 4 that links to each other with light ring drive arrangement 2, and the shading light ring 4 can rotate with installation axle 105 relatively under the drive of light ring drive arrangement 2 to make the shading light ring 4 reach the purpose of adjusting luminance, install axle 105 and fix on dodging groove 103 tank bottom and high-order bearing plane 1020.

It can stably shelter from diaphragm 4 rotational stability to install axle 105, simultaneously, utilizes the intercommunication groove 104 and dodges the position directly in front of recess 103 intercommunication department, and it can be convenient for shelter from diaphragm 4 installation to and diaphragm drive arrangement 2 and the connection installation that shelters from diaphragm 4, with the installation effectiveness that improves, and subsequent dismantlement efficiency.

Preferably, as shown in fig. 1, 2, 4 and 5, the base further includes a cover 109, a second light path hole 1093 whose axis coincides with the axis of the first light path hole 100 is disposed on the cover 109, the aperture of the first light path hole 100 is equal to the aperture of the second light path hole 1093, so as to prevent light from interfering, meanwhile, a first circular ring 1001 is disposed at an end of the first light path hole 100 close to the second light path hole 1093, a second circular ring 1093a is disposed at an end of the second light path hole 1093 close to the first light path hole 100, an inner wall of the first circular ring 1001 is flush with a hole wall of the first light path hole 100, and an inner wall of the second circular ring 1093a is flush with a hole wall of the second light path hole 1093, so that the distance between two end faces corresponding to the shielding diaphragm 4 can be further reduced, and a good light modulation effect can be achieved, and the shielding diaphragm 4 is located at a middle position between the first circular ring 1001 and the second circular ring 1093a after reaching the shielding.

In order to facilitate installation and disassembly, the cover 109 and the block-shaped seat 10 are circumferentially sleeved with each other, specifically, a U-shaped protrusion 102d is disposed on the high-level bearing plane 1020, the first light path hole 100 is located in the U-shaped protrusion 102d, two end portions of the U-shaped protrusion 102d extend to the side of the middle transition surface 1022 and are connected with the low-level bearing plane 1021 through an inclined portion 102e, U-shaped outer steps 102p connected with the middle transition surface 1022 are disposed on three sides of the low-level bearing plane 1021, a sleeved skirt 102f sleeved on the U-shaped outer steps 102p and the U-shaped protrusion 102d is disposed on the cover 109, a wiring gap through which the lead 20d passes is disposed on the sleeved skirt 102f, an inosculating surface 102g matched with the middle transition surface is disposed in the middle of the sleeved skirt 102f, the cover 109 and the block-shaped seat 10 can be stably connected together through the above cooperation, and the cover 109 can protect the diaphragm driving device 2, the stabilizing mechanism 3 and the shading diaphragm 4 inside, thereby prolonging the service life.

As shown in fig. 2 and 4, an inner top surface 1090 parallel to the high-position bearing plane 1020 and the low-position bearing plane 1021 is provided at the inner top of the cover 109, and an outer top surface 1090w parallel to the inner top surface 1090 is provided at the outer top of the cover 109, and the inner top surface 1090 is capable of allowing the stop diaphragm 4 to rotate and preventing rotational interference with the stop diaphragm 4. The vertical distance between the inner top surface 1090 and the high bearing plane 1020 is smaller than the vertical distance between the inner top surface 1090 and the low bearing plane 1021 to reduce the distance between the first light path hole 100 and the second light path hole 1093 as much as possible, so as to improve the dimming quality, a reinforcing portion 1091 sleeved with the free end of the mounting shaft 105 is arranged on the inner top surface 1090, the reinforcing portion 1091 is fixed on the inner top surface 1090 and is in a circular ring shape, as shown in fig. 5, the mounting shaft 105 is a stepped shaft, and an annular groove 1092 is formed at the joint of the reinforcing portion 1091 and the mounting shaft 105, and the annular groove 1092 is located in the middle of the vertical distance between the inner top surface 1090 and the high bearing plane 1020.

The ring channel 1092 is used for sheltering from the suit of light ring 4 and restricts sheltering from light ring 4 thickness direction, prevents to shelter from light ring 4 drunkenness, and shelters from light ring 4 and can rotate relative to ring channel 1092, reaches the purpose of adjusting luminance for shelter from light ring 4 and be in the position placed in the middle of vertical distance between interior top surface 1090 and the high level bearing plane 1020, play a very good light modulation effect.

It is another object of the present invention to prevent the shake of the shading diaphragm 4 by using the anti-shake mechanism, and specifically, as shown in fig. 6, the anti-shake mechanism of the present invention has a structure including: a shielding in-place stop 106 and an unshielded in-place stop 107 are further arranged on the bearing surface 102, and the shielding in-place stop 106 and the unshielded in-place stop 107 are distributed on the periphery of the first light path hole 100. The in-place blocking 106 and the in-place unblocking blocking 107 limit the range of movement of the blocking aperture 4, thereby protecting the blocking aperture 4, and meanwhile, in order to prevent the shaking phenomenon after the blocking aperture 4 rotates in place, the magnetic members 108 are respectively arranged on the in-place blocking 106 and the in-place unblocking blocking 107. The magnetic member 108 fixes the blocking aperture 4 in place in contact with the blocking-in-place stopper 106 and fixes the blocking aperture 4 in place in contact with the non-blocking-in-place stopper 107.

The magnetic member 108 is a magnet or a magnetic conductive sheet, preferably a magnet.

Preferably, as shown in fig. 2 and 6, one side surface of the shield-in-place stopper 106 close to the first light path hole 100 is a first contact plane 1060 parallel to the axis of the first light path hole 100, and the magnetic member 108 on the shield-in-place stopper 106 is located at one end of the shield-in-place stopper 106 close to the first contact plane 1060; one side surface of the non-shielding in-place stopper 107 close to the first light path hole 100 is a second contact plane 1070 parallel to the axial line of the first light path hole 100, and the magnetic member 108 on the non-shielding in-place stopper 107 is located at one end of the shielding in-place stopper 106 close to the second contact plane 1070.

The first contact plane 1060 and the second contact plane 1070 form an angle of 90 °. The first contact plane 1060 and the second contact plane 1070 are designed to enlarge the contact area with the blocking aperture 4, so as to secure the blocking aperture 4 in place.

In order to firmly fix the magnetic member 108, a first mounting hole is formed at a position far away from a surface of the bearing surface 102 and close to the first contact plane 1060 of the in-place block 106, a second mounting hole is formed at a position not far away from a surface of the bearing surface 102 and close to the second contact plane 1070 of the in-place block 107, and the magnetic member 108 is respectively mounted in the first mounting hole and the second mounting hole, so that the magnetic member 108 can be protected on the premise of ensuring enough magnetic attraction force, and the magnetic member 108 is prevented from directly contacting with the shading diaphragm 4 to cause rapid abrasion of the two.

Also, as shown in fig. 4, inner protrusions 109a are provided on the inner top surface 1090 to press against the block-in-place 106 and the block-out-in-place 107, respectively, and the inner protrusions 109a prevent the magnetic member 108 from coming out of the openings of the first and second mounting holes.

As shown in fig. 6 and 7, the above-mentioned stop diaphragm 4 includes a sheet-like body 40, a mounting shaft insertion hole 401 is provided in a rotating portion of the sheet-like body 40, an aperture 402 is provided in a blocking portion of the sheet-like body 40, a first anti-shake adsorption member 403 and a second anti-shake adsorption member 404 are further provided in the blocking portion of the sheet-like body 40, the first anti-shake adsorption member 403 is magnetically connected to a magnetic member 108 on the stop 106, the second anti-shake adsorption member 404 is magnetically connected to a magnetic member 108 on the block 107, the blocking portion of the stop diaphragm 4 moves and switches between the block 106 and the block 107, and the first anti-shake adsorption member 403 is used for blocking the blocking portion in place and fixing the blocking position, and the second anti-shake adsorption member 404 is used for blocking the blocking portion in the non-blocking position and fixing the blocking portion in the non-blocking position.

By using the anti-shake mechanism (the first anti-shake adsorbing member 403 and the second anti-shake adsorbing member 404), the shading diaphragm 4 can be firmly adsorbed and fixed to the magnetic member 108 at the shading position or the non-shading position, so that the shading portion of the shading diaphragm 4 cannot be inclined and cannot move or shake, and the stability of the light source is ensured.

Further, as shown in fig. 7, the first anti-shake absorption member 403 and the second anti-shake absorption member 404 are both made of magnetic materials, and the first anti-shake absorption member 403 and the second anti-shake absorption member 404 are made of magnets or metal blocks, when the magnets are used, the magnets attract the opposite poles of the magnetic member 108, and the metal blocks are absorbed under the magnetic action of the magnetic member 108, so that the first anti-shake absorption member 403 and the second anti-shake absorption member 404 of the present invention adopt the magnet materials in terms of reaction speed, so as to improve the dimming efficiency of the image pickup apparatus and the electronic device.

Preferably, the first anti-shake absorption member 403 and the second anti-shake absorption member 404 are fixed on any one surface in the thickness direction of the shielding portion, for example, glue is used to directly fix the first anti-shake absorption member 403 and the second anti-shake absorption member 404 on any one surface, one side of the shielding portion of the sheet-shaped body 40 is provided with a first side plane 405, the first side plane 405 is matched with the first contact plane 1060, the other side of the shielding portion of the sheet-shaped body 40 is provided with a second side plane 406, and the second side plane 406 is matched with the second contact plane 1070, the matching can ensure that the two have larger contact surfaces and ensure the stability when the two are in contact, and simultaneously, the mutual magnetic attraction force of the first anti-shake absorption member and the opposite magnetic member 108 or the second anti-shake absorption member 404 and the magnetic member 108 can ensure the reliable stability of the shielding position of the shielding aperture 4 at the shielding position or the position after the shielding is cancelled, and can further prevent the shielding portion of the sheet-shake absorption member 40 from tilting, moving, and the like.

Of course, the first anti-shake absorption member 403 and the second anti-shake absorption member 404 are fixed to different surfaces in the thickness direction of the shielding portion, and the above-mentioned use requirements can be satisfied as well.

As shown in fig. 7, the width of the sheet body 40 of the present embodiment is configured to be large at both ends and small at the middle, and secondly, the first side plane 405 and the second side plane 406 form an acute angle of less than 90 ° so that the diaphragm can move between the first contact plane 1060 and the second contact plane 1070, and of course, the angle formed by the first side plane 405 and the second side plane 406 may be enlarged as the angle between the first contact plane 1060 and the second contact plane 1070 is enlarged.

Next, in order to firmly fix the first anti-shake adsorption member 403 and the second anti-shake adsorption member 404 and to improve the installation efficiency, a first limiting hole 40a and a second limiting hole 40b are formed in any surface of the shielding portion of the sheet-shaped body 40 in the thickness direction, the first limiting hole 40a is located at a side close to the first side plane 405, the second limiting hole 40b is located at a side close to the second side plane 406, the first anti-shake adsorption member 403 is installed in the first limiting hole 40a, and the second anti-shake adsorption member 404 is installed in the second limiting hole 40b, which is designed to shorten the distance from the magnetic member 108 as much as possible to improve the adsorption strength of the adsorption and fixation, thereby completely solving the problem that the shielding diaphragm 4 still has the phenomena of inclination, movement and shaking due to weak magnetic adsorption force.

The first limiting hole 40a and the second limiting hole 40b may be through holes or blind holes directly formed in the shielding portion of the sheet-shaped body 40, or corresponding annular protrusions 40c may be formed on any surface of the shielding portion of the sheet-shaped body 40, the first limiting hole 40a or the second limiting hole 40b is formed inside the annular protrusions, which is equal to the fact that the corresponding annular protrusions 40c are sleeved on the first anti-shake absorbing member 403 and the second anti-shake absorbing member 404 in the circumferential direction, and the annular protrusions 40c are more beneficial to the installation and fixation of the first anti-shake absorbing member 403 and the second anti-shake absorbing member 404. As a preferable mode, the annular protrusion 40c is disposed on a surface of the sheet-like body 40 where the shielding portion is close to the cover 109, because the cover 109 can axially limit the positions of the first anti-shake absorption member 403 in the first limiting hole 40a and the second anti-shake absorption member 404 in the second limiting hole 40b, the difficulty of mounting the stop diaphragm 4 on the mounting shaft 105 can be reduced.

The inner top surface 1090 of the cover 109 contacts with the annular protrusion 40c or a gap smaller than the thickness of the first anti-shake absorption member 403 and the thickness of the second anti-shake absorption member 404 is left between the inner top surface 1090 and the annular protrusion 40c, of course, the first anti-shake absorption member 403 and the first limiting hole 40a can be fixed by glue, and similarly, the second anti-shake absorption member 404 and the second limiting hole 40b can also be fixed by glue, the thickness of the first anti-shake absorption member 403 is equal to or smaller than the hole length of the first limiting hole 40a, and the thickness of the second anti-shake absorption member 404 is smaller than the hole length of the second limiting hole 40b, so that the shielding part of the sheet body 40 is prevented from bearing heavier due to the outward protrusions of the first anti-shake absorption member 403 and the second anti-shake absorption member 404.

Preferably, as shown in fig. 7, the annular protrusion 40c is in the shape of a rectangular protrusion, in which case the first limiting hole 40a and the second limiting hole 40b are both rectangular holes, and the first anti-shake adsorbing member 403 and the second anti-shake adsorbing member 404 are both rectangular structures, so as to ensure that one side of the first anti-shake adsorbing member 403 close to the first side plane 405 is parallel to the first side plane 405, and one side of the second anti-shake adsorbing member 404 close to the second side plane 406 is parallel to the second side plane 406, so as to increase the magnetic adsorption force and the magnetic connection stability after magnetic adsorption to the maximum extent, and in addition, the annular protrusion 40c is in the shape of a rectangular protrusion, which can thin the thickness of the sheet body 40 to the maximum extent, and increase the magnetic adsorption force as much as possible, so as to meet the dimming requirement of a space with a smaller thickness. Meanwhile, the design of the annular protrusion 40c can structurally reinforce the shielding part of the sheet-like body 40, which is equivalent to the function of a reinforcing rib.

The sheet-shaped body 40 has a circular arc outer convex surface 407 connected with the first side plane 405 and the second side plane 406 at the shielding part thereof, so that the sheet-shaped body 40 is prevented from generating an interference phenomenon during movement.

A kidney-shaped hole 408 is formed in the rotating portion of the sheet-like body 40, and the diaphragm driving device 2 is movably connected to the kidney-shaped hole 408, i.e. when the diaphragm driving device 2 is driven, the sheet-like body 40 can be pushed to switch between the blocking position and the unblocking position because the diaphragm driving device 2 moves along the kidney-shaped hole 408 due to the change of the position.

The kidney-shaped hole 408 is a kidney-shaped through hole which facilitates connection with the diaphragm driving device 2 and transmission of driving power.

Next, as shown in fig. 7, an annular upper convex portion 4080 having a shape adapted to the waist-shaped hole 408 is provided at an end of the waist-shaped hole 408 close to the cover 109, the annular upper convex portion 4080 is internally communicated with the waist-shaped hole 408, and an end surface of the annular upper convex portion 4080 close to the cover 109 is an annular contact plane 4081, and the annular contact plane 4081 is matched with the inner top surface 1090, so that the sheet-shaped body 40 can be kept horizontal when the sheet-shaped body 40 is switched between the shielding position and the non-shielding position, and meanwhile, the increased inner wall of the annular upper convex portion 4080 increases an axial contact surface with the diaphragm driving device 2, which greatly prolongs the service life of the sheet-shaped body 40, and further improves smoothness and stability of switching between the shielding position and the non-shielding position of the sheet-shaped body 40.

The wall of the kidney-shaped hole 408 is flush with the inner wall of the annular upper protrusion 4080.

The aperture of the mounting shaft insertion hole 401 is slightly larger than the groove bottom diameter of the annular groove 1092, and the clearance fit ensures that the sheet 40 can be driven by the aperture driving device 2 and switched between the shielding position and the non-shielding position, and the groove both walls of the annular groove 1092 can perform thickness direction restriction on the sheet 40.

The annular contact flat surface 4081 is higher than the upper end surface of the annular projection 40c to avoid interference.

As shown in fig. 8, the sheet 40 is in the occluding position and, as shown in fig. 9, the sheet 40 is in the non-occluding position.

As shown in fig. 10 to 12, the diaphragm driving device 2 includes the following structure: the diaphragm aperture stop comprises a frame body 20 with an opening 200 on one side surface, the frame body 20 is installed in an installation groove 101, a rotating block 201 which is rotatably connected with the frame body 20 is arranged in the frame body 20, a swinging cantilever 202 which extends outwards from the frame body 20 and penetrates out of the opening 200 is connected to the rotating block 201, the swinging cantilever 202 extends to the position below a rotating part of the shielding diaphragm 4, namely the position below the rotating part of the sheet-shaped body 40, a driving column 203 which extends upwards into a waist-shaped hole 408 is connected to the free end of the swinging cantilever 202, the driving column 203 is a circular column, and the rotating block 201 is connected with an electromagnetic driving mechanism.

The swing arm 202 is suspended in the avoidance groove 103 and the communication groove 104.

The upper end of the drive column 203 extends into the annular upper projection 4080 and the upper end face of the drive column 203 is flush with the annular contact surface 4081 or below the annular contact surface 4081, thereby preventing interference at the upper end of the drive column 203.

The electromagnetic driving mechanism drives the rotating block 201 to rotate back and forth within a certain angle relative to the frame 20, and the rotating block 201 rotates to drive the swinging cantilever 202 to swing back and forth within a certain angle, and the swinging cantilever 202 swings to force the driving column 203 to push the rotating part of the sheet-shaped body 40 to rotate back and forth relative to the mounting shaft 105, so that the kidney-shaped hole 408 plays a plurality of roles of transmitting power and limiting the maximum back and forth switching distance of the sheet-shaped body 40.

Specifically, the electromagnetic driving mechanism in the invention includes a circuit board 20a fixed on the outer top surface of the frame 20, a driving coil 20b is electrically connected to the circuit board 20a, a driving magnet 20c is arranged in the rotating block 201, and after the circuit board 20a is electrified, the rotating block 201 realizes back and forth rotation under the matching of the driving coil 20b and the driving magnet 20c, thereby achieving the purpose of driving.

The driving coil 20b is connected to a power source through a lead wire 20d, and in order to fix the lead wire 20d more stably, a wiring groove 1021a into which the lead wire 20d is embedded is provided on the lower supporting plane 1021 as shown in fig. 2.

Next, as shown in fig. 11 and 14 to 15, a rotation shaft mounting hole 20e is provided in each of the inner top surface and the inner bottom surface of the frame body 20, the axial lines of the two rotation shaft mounting holes 20e coincide with each other, a rotation shaft body 20f is provided in each of the upper surface and the lower surface of the rotation block 201, one rotation shaft body 20f is inserted into the rotation shaft mounting hole 20e in the inner top surface, and the other rotation shaft body 20f is inserted into the rotation shaft mounting hole 20e in the lower surface, thereby ensuring the rotational stability of the rotation block 201. Meanwhile, in order to facilitate the entry of the rotary shaft bodies 20f into the rotary shaft mounting holes 20e, upper inclined guide grooves 20g extending from the opening 200 toward the respective rotary shaft mounting holes 20e are provided on the inner top surface of the frame body 20, lower inclined guide grooves 20z extending from the opening 200 toward the respective rotary shaft mounting holes 20e are provided on the inner bottom surface of the frame body 20, and the rotary shaft bodies 20f enter and are mounted in the rotary shaft mounting holes 20e from the upper inclined guide grooves 20g and the lower inclined guide grooves 20z, respectively.

The groove width of the upper inclined guide groove 20g is gradually reduced from the opening 200 to the corresponding rotating shaft mounting hole 20e, and similarly, the groove width of the lower inclined guide groove 20z is gradually reduced from the opening 200 to the corresponding rotating shaft mounting hole 20e, and the groove depth of the upper inclined guide groove 20g is gradually reduced from the opening 200 to the corresponding rotating shaft mounting hole 20e, and similarly, the groove depth of the lower inclined guide groove 20z is gradually reduced from the opening 200 to the corresponding rotating shaft mounting hole 20e, and the structure can improve the dismounting efficiency of the rotating shaft body 20 f.

In addition, in order to facilitate the mounting and dismounting of the drive magnet 20c, as shown in fig. 13 and 16, a mounting blind hole 201a extending toward the front side surface of the rotary block 201 is provided on the rear side surface of the rotary block 201, the drive magnet 20c enters from the opening of the mounting blind hole 201a and is fixed in the mounting blind hole 201a, the drive magnet 20c may be further secured in the mounting blind hole 201a by using glue, and the rear side surface of the drive magnet 20c is located in the opening of the mounting blind hole 201a to prevent interference due to protrusion. Further, in order to make the electromagnetic driving more rapid and stable, two communicating hole bodies 201b are provided on the upper surface and/or the lower surface of the rotating block 201 and located at the periphery of the corresponding rotating shaft body 20f, and the communicating hole bodies 201b communicate with the mounting blind holes 201a, and of course, the communicating hole bodies 201b can also facilitate the mounting and dismounting of the driving magnet 20c to improve the efficiency. Preferably, the communicating hole 201b of the present invention is a waist-shaped hole, and the avoiding space is enlarged as much as possible to improve the electromagnetic driving performance of the driving magnet 20c and the driving coil 20 b.

Also, in order to improve the mounting and positioning efficiency, as shown in fig. 11 to 17, a bar-shaped positioning protrusion 20s is provided in a central region of an outer top surface of the frame body 20, a corresponding bar-shaped hole 20j into which the bar-shaped positioning protrusion 20s is inserted is provided in the circuit board 20a, and the driving coil 20b is fitted outside the bar-shaped positioning protrusion 20 s. Meanwhile, positioning pins 20k are respectively arranged at four corners of the outer top surface of the frame body 20, positioning holes 20q corresponding to the positioning pins 20k one to one are arranged on the circuit board 20a, and the positioning pins 20k are inserted into the positioning holes 20q for positioning.

Two positioning pin holes 20w are respectively arranged at two diagonal corners of the outer bottom surface of the frame body 20, two positioning pin bodies 101a which are in one-to-one correspondence with the positioning pin holes 20w are arranged at the bottom of the mounting groove 101, and the positioning pin bodies 101a are inserted into the positioning pin holes 20w to fix the frame body 20.

Above structure it can realize accurate location installation, has improved the installation effectiveness by a wide margin.

As shown in fig. 6 and 10, in order to make the diaphragm driving device 2 and the driving magnet 20c thereof have a continuous attracting force, the present invention designs the above-mentioned stabilizing mechanism 3, the stabilizing mechanism 3 is installed in the installation recess 101, specifically, the stabilizing mechanism 3 of the present invention includes the stabilizing magnetic conductive sheet 30 which is arranged in the installation recess 101 and is located outside the opening of the installation blind hole 201a, the driving magnet 20c and the stabilizing magnetic conductive sheet 30 are distributed in a relative interval, and the stabilizing magnetic conductive sheet 30 provides a continuous attracting force to the driving magnet 20c so as to ensure the swing stability of the swing cantilever 202.

Further, as shown in fig. 13, a rear opening 20t is provided at one end of the frame 20 away from the opening 200, the rear opening 20t is communicated with the opening 200, the rear opening 20t can form an avoidance when the rotating block 201 rotates, and the adsorption force between the driving magnet 20c and the stable magnetic conductive sheet 30 can be further improved, so that the swing cantilever 202 swings more stably.

As shown in fig. 2 and fig. 6, in order to firmly fix the stable magnetic conductive sheet 30, two positioning notches 101b are disposed on the groove wall of the mounting groove 101, and two ends of the stable magnetic conductive sheet 30 are respectively engaged with the positioning notches 101b to fix the stable magnetic conductive sheet 30, and of course, glue may be disposed between the stable magnetic conductive sheet 30 and the positioning notches to further improve the fixing stability of the stable magnetic conductive sheet 30.

Preferably, the length of the magnetic stabilizing and conducting plate 30 of the present invention is longer than the aperture of the installation blind hole 201a, so as to ensure that the magnetic stabilizing and conducting plate 30 has a large-angle adsorption force with respect to one surface of the driving magnet 20c, that is, the driving magnet 20c can be adsorbed by the magnetic force of the magnetic stabilizing and conducting plate 30 at different torsional motion angles.

Then, the side of each positioning notch close to the driving magnet 20c is respectively provided with an avoiding inclined plane 20y, the avoiding inclined plane 20y can further enlarge the magnetic adsorption angle of the stable magnetic conducting sheet 30, a wide-angle adsorption angle is formed, and the practicability is further improved. In order to facilitate the disassembly and assembly, a surface of the stabilizing magnetic conductive sheet 30 far away from the driving magnet 20c and a groove wall of the installation groove 101 form an avoiding space 20u, so that a tool can clamp the stabilizing magnetic conductive sheet 30 to enter and exit during the disassembly and assembly.

The working principle of the invention is as follows:

when the electromagnetic driving mechanism is powered on, the magnet 20c is driven to drive the rotating block 201 to rotate back and forth relative to the frame 20, the swinging cantilever 202 connected to the rotating block 201 swings back and forth together, at the moment, the driving column 203 on the swinging cantilever 202 moves in the waist-shaped hole 408 of the sheet-shaped body 40, because the sheet-shaped body 40 is rotatably mounted on the mounting shaft 105, when the position of the driving column 203 changes, the sheet-shaped body 40 rotates relative to the mounting shaft 105, and the rotation of the sheet-shaped body 40 enables the shielding part of the sheet-shaped body 40 to be switched back and forth between the shielding position and the non-shielding position, thereby achieving the purpose of dimming.

In the shielding position, the first side plane 405 is matched with the first contact plane 1060, and the first anti-shake absorption member 403 is magnetically connected with the magnetic member 108, so as to ensure the stability of the shielding diaphragm 4 after being shielded in place, and avoid the phenomena of tilting, moving, shaking and the like.

In the non-shielding position, the second side plane 406 is matched with the second contact plane 1070, and the magnetic member 108 is magnetically connected to the second anti-shake absorption member 404, so as to ensure the stability of the shielding diaphragm 4 in the non-shielding state, and avoid the phenomena of tilting, moving, shaking, etc.

When the driving magnet 20c moves back and forth, the driving magnet 20c is continuously attracted by the magnetic force of the stable magnetic conductive sheet 30, so that the operation stability of the driving magnet 20c, namely the operation stability of the diaphragm driving device 2, is ensured.

Example two

The structure and principle of the present embodiment are basically the same as the embodiments, and the different structures are as follows: as shown in fig. 18, the mounting shaft 105 is fixed to the bottom of the escape groove 103.

EXAMPLE III

The structure and principle of the present embodiment are basically the same as the embodiments, and the different structures are as follows: as shown in fig. 19, the mounting shaft 105 is fixed to the elevated bearing plane 1020.

Example four

On the basis of the above embodiment, as shown in fig. 6, the present invention further provides an iris diaphragm assembly, which has the above-mentioned shading diaphragm, a diaphragm driving device 2 disposed on a base a of the iris diaphragm, and a shading diaphragm 4 rotatably connected to the base a of the iris diaphragm, wherein the diaphragm driving device 2 drives the shading diaphragm 4 to switch between a shading position and an unblocking position, and the shading position and the unblocking position are respectively provided with an anti-shake mechanism for preventing the shading diaphragm 4 from tilting, moving and shaking, the base a of the iris diaphragm is provided with a stabilizing mechanism 3 opposite to the diaphragm driving device 2, and specific structures of the diaphragm driving device 2, the stabilizing mechanism 3, the shading diaphragm 4 and the anti-shake mechanism are shown in the first embodiment.

EXAMPLE five

On the basis of the above embodiment, the present invention further provides a lens driving device, which includes a device base, a housing mounted on the device base, a carrier located in a cavity formed by the device base and the housing, and the housing connected with the iris diaphragm assembly located in the cavity formed by the device base and the housing. The device base, housing and carrier of the present embodiment are all prior art, and reference may be made to the prior patent technology of this company.

Example six

On the basis of the above embodiments, as shown in fig. 20, the present invention also provides an image pickup apparatus having the lens driving apparatus as described in the fifth embodiment.

EXAMPLE seven

On the basis of the foregoing embodiment, as shown in fig. 21, the present invention further provides an electronic device, such as a security electronic device, having the image capturing apparatus according to the sixth embodiment.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims (9)

1. A shading diaphragm comprising a sheet-like body (40);

a mounting shaft insertion hole (401) is formed in a rotating portion of the sheet-like body (40);

the light hole (402) is arranged on the shielding part of the sheet-shaped body (40);

the anti-shake and anti-adsorption device is characterized in that a first anti-shake adsorption piece (403) and a second anti-shake adsorption piece (404) which are positioned on the periphery of the light hole (402) are further arranged on the shielding part of the sheet body (40), the first anti-shake adsorption piece (403) is used for shielding the shielding part in place and fixing the shielding part at the shielding position, and the second anti-shake adsorption piece (404) is used for shielding the shielding part to reach the non-shielding position and fixing the shielding part at the non-shielding position; an annular bulge (40 c) is arranged on any surface of the shielding part of the sheet-shaped body (40) and is respectively sleeved on the circumferential directions of the first anti-shake adsorption piece (403) and the second anti-shake adsorption piece (404);

a waist-shaped hole (408) is formed in a rotating portion of the sheet-shaped body (40), the waist-shaped hole (408) is used for being movably connected with the diaphragm driving device (2), an annular upper protruding portion (4080) with the shape matched with that of the waist-shaped hole (408) is arranged at an opening at one end of the waist-shaped hole (408), the inner portion of the annular upper protruding portion (4080) is communicated with the waist-shaped hole (408), and one end, far away from the sheet-shaped body (40), of the annular upper protruding portion (4080) is used for being in contact with the inner top face of the cover body (109) so that the sheet-shaped body (40) is kept horizontal.

2. A shading diaphragm according to claim 1, characterized in that there is a first side plane (405) at the side of the shielding portion of the sheet-like body (40) and a second side plane (406) at the other side of the shielding portion of the sheet-like body (40), the first anti-shake absorbing member (403) is located at the side close to the first side plane (405), and the second anti-shake absorbing member (404) is located at the side close to the second side plane (406).

3. The obscuration aperture of claim 2 characterized in that the first (403) and second (404) anti-shake absorption members are fixed to either surface of the obscuration in the thickness direction.

4. The obscuration aperture of claim 3, characterized in that a first limiting hole (40 a) and a second limiting hole (40 b) are provided on either surface of the sheet-like body (40) in the thickness direction of the obscuration portion, the first limiting hole (40 a) is located on the side close to the first side plane (405), the second limiting hole (40 b) is located on the side close to the second side plane (406), the first anti-shake absorbing member (403) is installed in the first limiting hole (40 a), and the second anti-shake absorbing member (404) is installed in the second limiting hole (40 b).

5. A shading diaphragm according to claim 4, characterized in that the inside of the annular projection forms the above-mentioned first limiting hole (40 a) or second limiting hole (40 b).

6. Iris diaphragm assembly characterized in that it has an obscuration diaphragm as described in any of claims 1-5 above.

7. Lens driving device, characterized in that the device comprises a device base on which a housing is mounted, a carrier being located in a cavity formed by the device base and the housing, and an iris diaphragm assembly according to claim 6 being attached to the housing.

8. An image pickup apparatus having the lens driving apparatus according to claim 7.

9. An electronic apparatus, characterized by having the imaging device according to claim 8.

Images